Index: misc/autocomplete.js
===================================================================
RCS file: /cvs/drupal/drupal/misc/autocomplete.js,v
retrieving revision 1.34
diff -u -r1.34 autocomplete.js
--- misc/autocomplete.js	5 Sep 2009 12:03:31 -0000	1.34
+++ misc/autocomplete.js	2 Nov 2009 03:27:06 -0000
@@ -262,8 +262,8 @@
   }
 
   // See if this key has been searched for before.
-  if (this.cache[searchString]) {
-    return this.owner.found(this.cache[searchString]);
+  if (this.cache['acdb_' + searchString]) {
+    return this.owner.found(this.cache['acdb_' + searchString]);
   }
 
   // Initiate delayed search.
@@ -280,7 +280,7 @@
       dataType: 'json',
       success: function (matches) {
         if (typeof matches.status == 'undefined' || matches.status != 0) {
-          db.cache[searchString] = matches;
+          db.cache['acdb_' + searchString] = matches;
           // Verify if these are still the matches the user wants to see.
           if (db.searchString == searchString) {
             db.owner.found(matches);